code: def decode_generalized_number(extended, extpos, bias, errors):
      """3.3 Generalized variable-length integers"""
      result = 0
      w = 1
      j = 0
      while 1:
          try:
              char = ord(extended[extpos])
          except IndexError:
              if errors == "strict":
                  raise UnicodeError("incomplete punicode string")
              return extpos + 1, None
          extpos += 1
          if 0x41 <= char <= 0x5A:  # A-Z
              digit = char - 0x41
          elif 0x30 <= char <= 0x39:
              digit = char - 22  # 0x30-26
          elif errors == "strict":
              raise UnicodeError(
                  "Invalid extended code point '%s'"
                  % extended[extpos - 1]
              )
          else:
              return extpos, None
          t = T(j, bias)
          result += digit * w
          if digit < t:
              return extpos, result
          w = w * (36 - t)
          j += 1
  
imports: import codecs
label_desc: Use image node_id 10 for calling a global function with example usage: decode_generalized_number(extended, extpos, bias, errors) and returns: extpos,  result, unknown,  None, extpos,  None